[丈育氵]这种机械键盘现在常见嘛

楼主孤陋寡闻最近翻出个2017键盘惊呆了
[img]https://img.nga.178.com/attachments/mon_202009/25/c4Q5-gb85K2rT3cSlc-sg.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202009/25/c4Q5-gi6lK1iT1kSe8-sg.jpg[/img]
这轴就纯机械，完全不涉及键盘触发。。。
全靠板子上的光学结构和圆柱挡住光触发
[img]https://img.nga.178.com/attachments/mon_202009/25/c4Q5-h95gZdT3cSlc-sg.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202009/25/c4Q5-10lnK11T1kSe8-sg.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202009/25/c4Q5-bdq9KyT1kSe8-sg.jpg[/img]
所以这种现在是很常见吗